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1

Where should you start? Look up examples, code, and tinker. This isn't a great question, but you should be prepared to go forth and experiment on something like this.
–
MakotoDec 30 '12 at 23:18

My problem I do not know this characterization to start search for it :(
–
motaz99Dec 30 '12 at 23:21

3 Answers
3

You could create your own version of the game using instances of JToggleButton in a GridLayout, as shown here. The yellow rectangle could be drawn on the glass pane using drawRect() with a Stroke of 4. The +15 looks a lot like a tool tip, as @informatik01 suggests. See also this simple MVCGame.